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What is a drive belt tensioner?

Updated: 10/20/2022
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10y ago

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If your vehicle has a serpentine belt that is used to drive the accessories

( alternator , air conditioning compressor , Power Steering , etcetera )

the serpentine belt has a spring loaded tensioner that is supposed to keep the

proper tension on the belt ( if it is working correctly )

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Q: What is a drive belt tensioner?
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How do you replace the serpentine belt on a 2000 Chevy Corvette?

Remove the air intake duct, if necessary. Refer to Air Cleaner Assembly Replacement in Engine Controls - 5.7 L. Install a breaker bar with hex-head socket to the drive belt tensioner bolt. Rotate the drive belt tensioner clockwise in order to relieve tension on the accessory drive belt. Remove the accessory drive belt from the pulleys and tensioner. Slowly release tension on the drive belt tensioner. Remove the breaker bar and socket from the drive belt tensioner bolt. Clean and inspect the drive belt surfaces of all the pulleys. Route the accessory drive belt around all the pulleys except the water pump pulley and tensioner. Install a breaker bar with hex-head socket to the drive belt tensioner bolt. Rotate the drive belt tensioner clockwise in order to relieve tension on the drive belt tensioner. Install the accessory drive belt under the water pump pulley. Install the accessory drive belt onto the drive belt tensioner. Slowly release the tension. Remove the breaker bar and socket from the drive belt tensioner bolt. Install the air intake duct, if necessary. Refer to Air Cleaner Assembly Replacement in Engine Controls - 5.7 L. Inspect the accessory drive belt for correct alignment.


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